It was very easy to see, with the chroma burst test patters, that the Blue Jeans offered Belden 1694A component video cables, that they were a marked improvement over the Radio Shack cables I was using before.
But in the audio realm, dealing with in the kHz range instead of MHz, interconnects have quite a bit less demand placed upon them. Still I used BJC's cables there too.
As for flexible HDMI cables, check out Blue Jean's Belden Series-F2. It's what I'm using now, after their old, stiff Series 2 it's like butter.